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Year 9 Module 3 Practice Paper

Brockington College - Science

minutes

marks

This is a collection of useful questions to help practice for your Science test, but as such should not be taken as wholly indicative of what is on your real test.

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Q1. Ben and Jason are identical twins. Ben plays football during break time. Jason has a broken leg. He sits quietly in the classroom.

(a) Tick the boxes by three sentences which can only describe Ben and not Jason.

3 marks

(b) Which two sentences in the list above could describe both Ben and Jason during that break time?

1. ..................................................................................................................

2. .................................................................................................................. 2 marks

Maximum 5 marks

Q2. (a) The diagram shows a section through a flower from a cherry tree.

(i) Which part becomes the seed? ........................................................... 1 mark

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(ii) Which part becomes the fruit? ............................................................. 1 mark

(iii) What is the function of the anther? ....................................................... 1 mark

(b) The drawings below show the fruits of two different plants.

For each fruit, suggest how its structure helps the seeds to be scattered away from the parent plant.

Goosegrass: ................................................................................................

.....................................................................................................................

Goat’s beard: ...............................................................................................

..................................................................................................................... 2 marks

(c) Explain why it is an advantage to plants that their seeds are scattered far apart.

......................................................................................................................

...................................................................................................................... 1 mark

Maximum 6 marks

Q3. (a) The drawings below show a stoat in summer and in winter.

stoat in summer stoat in winter

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In winter the ground is often covered by snow or frost. During this part of the year a stoat’s fur is white. Suggest two ways its white coat helps a stoat to survive in the winter.

......................................................................................................................

......................................................................................................................

...................................................................................................................... 2 marks

(b) The diagram shows the family tree for a family of rabbits.

Use words from the list below to complete the sentences.

adapt cytoplasm genes grow inherit

letters membrane mutate nuclei

Rabbits have the same fur colour all year round.

Young rabbits ............................................ fur colour from their parents.

Information about fur colour is passed on from one generation to

the next in the form of ................................... in the ..................................... of

an egg and sperm. 3 marks

Maximum 5 marks

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Q4. The drawings show identical twins, Sara and Helen, and their parents.

(a) (i) Sara and Helen have blue eyes like their mother.

Describe how genetic information is passed on from a parent to a child.

................................................................................................................

................................................................................................................

................................................................................................................

................................................................................................................ 2 marks

(ii) Sara and Helen have brown hair like their father and blue eyes like their mother.

Why do children have characteristics of both parents?

................................................................................................................

................................................................................................................ 1 mark

(b) Sara and Helen are identical twins.

Why do they have identical characteristics?

............................................................................................................................

............................................................................................................................ 1 mark

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(c) Sara now spends a lot of her time working outdoors in a hot country. Helen now works in an office in England.

The table shows information about three human characteristics.

characteristic Is it identical for Sara and Helen?

eye colour yes

skin colour no

weight no

Explain why their eye colour is identical but their weight and skin colour are not identical.

.........................................................................................................................

.........................................................................................................................

.........................................................................................................................

......................................................................................................................... 2 marks

maximum 6 marks

Q5. (a) The drawings below show an old and a modern variety of wheat plant.

old variety

modern variety

average mass of grain produced per m2 (kg)

0.5 0.8

average length of stalk (cm) 145 78

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Glucose produced by the wheat plants is used:

• to provide energy for growth

• to make cell walls

• to make starch which is stored in the grain.

Give one reason why modern wheat plants with short stalks can store more starch in the grain. Use the drawings and information.

........................................................................................................................

........................................................................................................................ 1 mark

(b) A plant breeder wants to use selective breeding to produce corn with short stalks and a high mass of grain. He could use the following varieties of corn:

variety A

long stalks

high mass of grain

variety B

short stalks

low mass of grain

variety C

long stalks

low mass of grain

(i) What would the plant breeder need to do to make sure he always produced corn with short stalks and a high mass of grain? Describe the three steps the breeder would use.

...............................................................................................................

...............................................................................................................

...............................................................................................................

...............................................................................................................

...............................................................................................................

............................................................................................................... 3 marks

(ii) Suggest one other characteristic that farmers might like corn plants to have to increase the amount of corn produced.

............................................................................................................... 1 mark

maximum 5 marks

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Q6. Gareth was writing to a pen-friend. This is how he described himself:

I am a boy. I weigh 600 N.

I am 16 years old. I speak French.

I have brown eyes. I have a scar on my chin.

I am 1.8 m tall.

(a) From the list, choose two features which he must have inherited and which will not have been affected by his environment.

1. ..................................................................................................................

2. .................................................................................................................. 2 marks

(b) From the list, choose two features which will have been affected by both inherited and environmental factors.

1. ..................................................................................................................

2. .................................................................................................................. 2 marks

(c) Gareth measured the heights of the 16-year-old pupils at his school. He recorded the distribution in a bar chart.

He also collected data about the features in the list below.

Which two features would show a similarly shaped distribution to Gareth’s bar chart?

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Tick the two correct boxes.

Ability to roll the tongue.

Presence of ear lobes.

Mass of the pupil.

Circumference of the head.

Sex of the pupil. 2 marks

Maximum 6 marks

Q7. (a) The table below shows the melting points of four metals.

metal melting point,

in °C

gold 1064

mercury –37

sodium 98

iron 1540

(i) Which metal in the table has the highest melting point?

............................................................ 1 mark

(ii) Which metal in the table has the lowest melting point?

............................................................ 1 mark

(b) Gold can be a gas or a liquid or a solid.

Choose from these words to fill the gaps below.

When gold is heated from room temperature to 1070°C, the gold

changes from a ................................. to a ................................... . 1 mark

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(c) 5 g of gold is melted and all of it is poured into a mould to make a pendant as shown below.

What is the mass of the gold pendant?

........................... g 1 mark

(d) The table below shows how the four metals react with oxygen when heated in air.

metal reaction when heated in air

gold no change

mercury slowly forms a

red powder

sodium bursts into flames

straight away

iron very slowly turns

black

(i) Which is the most reactive metal in the table?

............................................................ 1 mark

(ii) Which is the least reactive metal in the table?

............................................................ 1 mark

Maximum 6 marks

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Q8. Four shiny iron nails are put in small sealed plastic boxes. The labels show what else is in the boxes.

(a) (i) In which two boxes will the iron not rust or corrode?

.............................. and .............................. 2 marks

(ii) In which box will the iron corrode the most?

......................................... 1 mark

(b) Many parts of bicycles are made from iron or steel. These parts can rust easily, even indoors. Give two ways to stop these parts rusting.

1. .................................................................................................................

2. ................................................................................................................. 2 marks

Maximum 5 marks

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Q9. An alloy is a mixture of elements. The table shows the mass of each element present in 100 g of five different alloys, bronze, solder, steel, stainless steel and brass.

mass of each element in 100 g of alloy

alloy lead (g)

tin (g)

copper (g)

zinc (g)

carbon (g)

iron (g)

chromium (g)

nickel (g)

bronze 4 95 1

solder 62 38

steel 1 99

stainless steel

70 20 10

brass 67 33

(a) Which alloy in the table above contains an element which is a non-metal?

............................................................. 1 mark

(b) Which two alloys in the table contain only two metals?

........................................................ and ......................................................... 1 mark

(c) Another alloy called nichrome contains only the elements chromium and nickel. 100 g of nichrome contains 20 g of chromium.

How much nickel does it contain?

……… g 1 mark

(d) Before 1992, two-pence coins were made of bronze. Steel rusts but bronze does not rust.

(i) Why does bronze not rust? Use information in the table above to help you.

...............................................................................................................

............................................................................................................... 1 mark

(ii) Rusting requires water and a gas from the air. Give the name of this gas.

............................................................. 1 mark

maximum 5 marks

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Q10. Jill bought a can of Wax Seal to spray the parts underneath her car.

Wax Seal helps to prevent these parts rusting.

It is a mixture of wax and a liquid called white spirit.

(a) (i) The body of Jill’s car is made from steel. Steel contains iron.

Give two substances that are needed for iron to rust.

1. .................................................. 1 mark

2. .................................................. 1 mark

(ii) How does Wax Seal help to protect the car from rusting?

...............................................................................................................

............................................................................................................... 1 mark

(iii) Wax Seal can also be used on the upper parts of a car.

What else protects parts such as the doors from rusting?

................................................................................................................ 1 mark

(b) The metal parts of a car may corrode.

What type of air pollution could cause corrosion?

.............................................. 1 mark

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(c) The diagram below shows the mixture of particles of wax and white spirit in Wax Seal.

not to scale

After Jill sprays the car, the white spirit evaporates leaving a layer of solid wax on the surface.

(i) In the box below, draw eight circles, , to show the arrangement of particles in a gas.

particles in a gas 1 mark

(ii) In the box below, draw eight circles, , to show the arrangement of particles in a solid.

particles in a solid 1 mark

maximum 7 marks

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Q11. The table shows the observations made when four metals are added to cold water and to dilute hydrochloric acid.

(a) Write the names of these four metals in the order of their reactivity.

most reactive ..................................................

..................................................

least reactive .................................................

.................................................. 1 mark

(b) (i) Give the name of another metal, not in the table, which reacts in a similar way to potassium.

............................................................................................................. 1 mark

(ii) What gas is formed when zinc reacts with dilute hydrochloric acid?

............................................................................................................. 1 mark

(iii) The experiment with potassium and dilute hydrochloric acid should not be done in school laboratories. Suggest why it is dangerous.

.............................................................................................................

............................................................................................................. 1 mark

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(c) A scientist set up two test-tubes as shown below.

In test-tube B the zinc strip was slowly covered with a grey deposit. Nothing happened in the other test-tube.

(i) What was the grey deposit in test-tube B?

............................................................................................................. 1 mark

(ii) Why was this grey deposit formed in test-tube B?

............................................................................................................. 1 mark

(iii) Explain why no reaction took place in test-tube A.

.............................................................................................................

............................................................................................................. 1 mark

Maximum 7 marks

##

(a) Sasha placed small samples of four different metals on a spotting tile. She added drops of calcium nitrate solution to each metal.

Sasha repeated the experiment with:

• fresh samples of the four metals and copper nitrate solution

• fresh samples of the four metals and iron nitrate solution.

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Will a reaction take place when each of the metals is added to each of the solutions? Use the reactivity series below to help you.

most reactive calcium magnesium aluminium zinc iron lead

least reactive copper

In the table below:

• place a tick, , to show that a reaction took place

• place a cross, X, to show that no reaction took place.

Two have been done for you.

3 marks

salt solution

metal

copper iron magnesium zinc

calcium nitrate

copper nitrate X

iron nitrate X

(b) Three pairs of chemicals are listed below. A reaction only takes place with two of the pairs.

Draw a line from each reaction to the correct result. Draw only three lines.

2 marks

maximum 5 marks

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Q13. An experiment is carried out to find the relative reactivities of four metals: copper, magnesium, iron and zinc.

Strips of three of the metals are placed in dilute solutions of different sulphates, as shown below, and left for the same length of time

(a) Use the information in the table to place the four metals in order of reactivity.

most reactive ............................................................

............................................................

............................................................

least reactive ............................................................ 1 mark

(b) Use the appropriate descriptions given in the table to help you complete the three missing parts of the table.

2 marks

(c) The concentrations of the solutions are the same. Suggest which of the four experiments gives out the most energy.

...................................................................................................................... 1 mark

Maximum 4 marks

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Q14. Five people take it in turns to sit on a see-saw. The table gives the weight of each person.

person weight, in N

Jack 510

Ellie 540

Rosie 490

Maggy 540

Andy 560

(a) Andy sits at one end, but there is nobody on the other end.

Andy sits on the see-saw. In which direction does his end of the see-saw move?

................................................................... 1 mark

(b) Which two people in the table above could make the see-saw balance?

………………………..……...…......and………………….......…………..…. 1 mark

Use information in the table to help you answer parts (c) and (d).

(c) Rosie sits on end A, and Jack sits on end B.

They lift their feet. What happens to each end of the see-saw? Write up or down in the boxes under Rosie and Jack.

1 mark

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(d) Ellie sits on end A, and another of the group sits on end B. Ellie's end stays down.

Who could be on end B?

................................................................... 1 mark

Maximum 4 marks

Q15. Tom tries on four types of footwear in a sports shop.

ski boot trainer

ice skate walking boot

(a) (i) When Tom tries on the footwear, which one sinks into the carpet the most?

............................................................................................................. 1 mark

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(ii) When Tom tries on the footwear, what is the same for each type of footwear? Tick the correct box.

1 mark

the area of the footwear

Tom’s weight on the footwear

the material of the footwear

the weight of the footwear

(b) The drawing below shows a snowshoe.

How do snowshoes help people to walk in deep snow?

.....................................................................................................................

..................................................................................................................... 1 mark

(c) Choose the correct word from the list to complete the sentence below.

air resistance friction gravity magnetism

When Tom is ice skating the force of ..........................................................

between the skate and the ice is less than when he is walking on a carpet. 1 mark

Maximum 4 marks

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Q16. The diagram below shows muscles and bones of a human arm.

(a) Why is it important that the tendons do not stretch?

......................................................................................................................

...................................................................................................................... 1 mark

(b) The biceps and triceps are an antagonistic pair of muscles. Explain what this means.

......................................................................................................................

...................................................................................................................... 1 mark

(c) The diagram below shows muscles and bones of a human leg.

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(i) Which muscle contracts to move the foot in the direction shown by the arrow? Give the letter.

.............. 1 mark

(ii) Which two pairs of muscles are antagonistic pairs? Tick the two correct boxes.

A and B

B and C

C and D

D and A 2 marks

maximum 5 marks

##

The drawing shows a boy with a bow and arrow. He is holding the arrow and pulling it back.

(a) Two horizontal forces act on the arrow. These are the force exerted by the boy’s hand and the force exerted by the string. The arrow is not moving.

The boy pulls the arrow with a force of 150 N. What is the size of the force exerted by the string on the arrow?

...................... N 1 mark

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(b) When the boy lets go of the arrow, it starts to move forward.

Explain why it starts to move.

......................................................................................................................

...................................................................................................................... 1 mark

(c) The arrow flies across a field and hits a target.

Two forces act on the arrow while it is in the air. Air resistance acts in the opposite direction to the movement, and gravity acts downwards. These two forces cannot balance each other, even when they are the same size. Why is this?

......................................................................................................................

...................................................................................................................... 1 mark

(d) The arrow has a sharp pointed end. When the arrow hits the target, the sharp point exerts a very large pressure on the target.

Why does a sharp pointed end exert a larger pressure than a blunt end?

......................................................................................................................

...................................................................................................................... 1 mark

Maximum 4 marks

Q18. A builder tried to remove a wooden post from the ground by pulling with a rope.

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(a) (i) The builder attached a rope to hole A, 0.8 m above the ground. He pulled with a horizontal force of 300 N.

Calculate the turning moment about the pivot P. Give the unit.

...............................................................................................................

............................................................................................................... 2 marks

(ii) He then attached a rope to hole B, 1.6 m above the ground. He pulled with a horizontal force.

What force would produce the same turning moment as before?

........................................................................................................... N 1 mark

(b) The post breaks off and falls on the ground as shown.

The weight of the broken post is 120 N.

The area in contact with the ground is 0.2 m2.

Calculate the pressure of the broken post on the ground. Give the unit.

........................................................................................................................

........................................................................................................................ 2 marks

maximum 5 marks

##

The diagram shows a lever. A weight is near the end of the lever. A force, F, pushes up on the pad and balances the lever.

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(a) The 50 N weight is pulling the lever anticlockwise around the pivot. Calculate the moment (turning effect) of the 50 N weight about the pivot. Give the units.

......................................................................................................................

...................................................................................................................... 2 marks

(b) The force F is just big enough to keep the lever balanced.

(i) What is the moment of force F about the pivot?

............................................................................................................. 1 mark

(ii) What is the size of force F?

.............................................................................................................

......................................................................................................... N 1 mark

(c) (i) The force F becomes smaller. How should the 50 N weight be moved to keep the lever arm horizontal?

............................................................................................................. 1 mark

(ii) The size of force F on the pad is 100 N. The area of the pad is 2 cm . Calculate the pressure of this force on the pad. Give the units.

.............................................................................................................

............................................................................................................. 2 marks

Maximum 7 marks

2

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M1. (a) He is sweating a lot. 1 (L3)

His heart is beating faster than usual. 1 (L3)

He is breathing very quickly. 1 (L3)

if more than three boxes are ticked, deduct one mark for each incorrectly ticked box minimum mark zero

(b) He has brown hair. accept ‘brown hair’ or’ hair’

1 (L3)

He has blue eyes. accept ‘blue eyes’ or ‘eyes’ answers may be in either order

1 (L3) [5]

M2. (a) (i) ovule 1 (L5)

(ii) ovary 1 (L5)

(iii) to make or release or store pollen 1 (L5)

(b) answers should refer to the hooks on the goosegrass fruit and the hairs on the goat’s beard fruit

• hooks attach it to animals or clothes or fur

do not accept ‘it is carried by animals’ 1 (L6)

• hairs or parachute carry it in the wind

do not accept ‘it is carried in the wind’ 1 (L6)

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(c) any one from

• so that they are not crowded accept ‘more space’ or ‘to avoid competition’

• so that they all get enough nutrients or minerals

• so that they can all get enough water

• so that seedlings are not shaded by the plant

• accept ‘so that they all get enough light’

• so that they can grow in new areas accept ‘to reduce the risk of disease spreading’

1 (L5) [6]

M3. (a) it helps it to hide from its prey 1 (L6)

it helps it to hide from predators answers may be in either order accept ‘hides it from rabbits or from animals it eats’ accept ‘hides it from animals which eat or hunt it’ accept ‘to camouflage it’ for one mark only accept ‘it is an insulator’ or ‘it keeps them warm’

1 (L6)

(b) inherit 1 (L6)

genes 1 (L6)

nuclei accept ‘nucleus’

1 (L6) [5]

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M4. (a) (i) • genes or DNA or chromosomes 1 (L7)

• in gametes or sex cells or eggs or sperm

accept ‘at fertilisation ‘in the nucleus’ is insufficient

1

(ii) • they have genes or DNA or chromosomes from both parents

accept ‘they have genetic information from both parents’ accept ‘from eggs and sperm’

1 (L7)

(b) • they have the same genetic information or the genes or DNA or chromosomes

accept ‘they are from the same egg and same sperm’ accept ‘the fertilised egg or zygote split in two’ accept ‘they are from the same fertilised egg ‘from the same egg’ or ‘from the same sperm’ is insufficient accept references to the egg dividing if the answer makes clear that this is after fertilisation eg ‘the egg divides after it has joined with a sperm ‘the egg divides in the uterus’ is insufficient

1 (L7)

(c) any one from

• eye colour is inherited or controlled by genes

• eye colour is not affected by environmental factors 1 (L7)

any one from

• weight and skin colour are affected by environmental factors

• weight is affected by diet or exercise and skin colour by the Sun

accept ‘weight and skin colour are not just controlled by genes’ answer must refer to both weight and skin colour ‘weight and skin colour are3 not controlled by genes’ is insufficient

1 [6]

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M5. (a) any one from

• less cellulose is needed or fewer cell walls produced or less glucose changed to cellulose

accept ‘less stalk is made’

• less glucose or energy needed or used for growth

accept ‘less glucose used in respiration’ ‘less starch is used for growth’ is insufficient accept ‘it does not have to grow as much’

• more glucose is available to be changed into starch accept ‘more glucose goes to the grain’ do not accept ‘the glucose gets to the grain quicker’ accept ‘blown over less easily or less frequently’

1 (L7)

(b) (i) any two from

• cross plants with short stalks and low grain mass with plants with long stalks and high grain mass

accept ‘breed from varieties A and B’ ‘mix varieties A and B’ is insufficient

• collect or plant the seeds

• choose offspring with shortest stalks and which produce a high mass of grain

accept ‘choose the best’ 2 (L7)

• repeat with offspring or continue the whole process a three mark answer must include two of the first three marking points and a reference to repeating or continuing the process

1 (L7)

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(ii) any one from

• disease resistance

• pest resistance ‘increased amount of grain’ or ‘number of ears of corn’ are insufficient ‘more stalks’ is insufficient accept ‘corn’ for ‘wheat’

• drought tolerance

• frost resistance

• resistance to herbicides or weed killers

• resistance to wind accept ‘strong stalk’ or ‘long roots’ accept ‘hardy’ accept ‘big or long leaves or lots of leaves’ accept ‘faster growing’

1 (L7) [5]

M6. (a) brown eyes

accept ‘eyes’ 1 (L7)

boy answers may be in any order do not accept ‘height’

1 (L7)

(b) 1.8 m tall answers may be in any order

1 (L7)

600 N accept ‘height’ accept ‘weight’ accept ‘speaks French’

1 (L7)

(c) mass of pupil 1 (L7)

circumference of head if more than two boxes are ticked, deduct one mark for each incorrectly ticked box - minimum mark zero

1 (L7) [6]

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M7. (a) (i) iron

do not accept ‘1540°C’ 1 (L3)

(ii) mercury do not accept ‘–37°C’

1 (L3)

(b) solid to a liquid answers must be in the correct order both answers are required for the mark

1 (L3)

(c) 5 1 (L3)

(d) (i) sodium 1 (L3)

(ii) gold 1 (L3)

[6]

M8. (a) (i) A and D 2 (L4)

(ii) C answers may be in either order

1 (L4)

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(b) any two from

• paint them accept ‘varnish it’

• grease them accept ‘WD40’

• oil them accept ‘plate them’ or ‘chrome them’

• galvanise them or ‘coat them with zinc or tin’

• coat them with plastic accept ‘cover them in plastic’ do not accept ‘keep them dry’ or ‘keep air away’

do not accept ‘make them from stainless steel’ or any idea of replacement

2 (L4) [5]

M9. (a) steel

do not accept ‘stainless steel’ do not accept ‘carbon’

1 (L5)

(b) • brass

• solder answers may be in either order both answers are required for the mark

1 (L5)

(c) 80 accept ‘100 – 20’

1 (L5)

(d) (i) it does not contain iron accept ‘it does not contain steel’ accept ‘only iron rusts’ or ‘only steel rusts’ accept ‘it is made of tin, copper and zinc’

1 (L6)

(ii) oxygen accept ‘O

2’

1 (L6) [5]

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M10. (a) (i) • oxygen 1 (L6)

• water 1 (L6)

answers may be in either order ‘air’ is insufficient ‘moisture’ or ‘dampness’ or ‘wet’ are insufficient

(ii) any one from

• it prevents contact between the steel or the car and oxygen or water

• it is waterproof or water runs off

accept ‘it prevents air getting to the car’ accept ‘wax fills scratches or chips where paint is damaged’ ‘it forms a protective layer’ is insufficient

1 (L5)

(iii) any one from

• paint

• chrome accept ‘they are coated in zinc’ or ‘they are galvanised’ accept ‘polish’ ‘rust treatment’ is insufficient ‘cover it’ is insufficient

1 (L5)

(b) • acid rain accept ‘sulphur dioxide’ accept ‘oxides of nitrogen’ accept ‘car exhaust fumes’ accept ‘burning fossil fuels’ accept ‘sea air’ or ‘salty air’ or ‘salt’ ‘carbon dioxide’ is insufficient

1 (L6)

(c) (i) • gas: particles randomly arranged and most not touching

accept black shaded circles if drawn correctly accept fewer or more than 8 circles if the arrangement is clear ignore arrows attached to circle

1 (L6)

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(ii) • solid: particles regularly arranged and all touching

accept white circles if drawn correctly accept 2 rows of particles with at least 2 particles in the second row accept fewer or more than 8 circles if a regular arrangement is clear ignore location of circles in box do not accept a single row of circles

1 (L6) [7]

M11. (a) • potassium

• zinc

• nickel

• platinum 1 (L5)

all four metals in the correct order are required for the mark

(b) (i) sodium accept ‘caesium’

1 (L6)

(ii) hydrogen 1 (L6)

(iii) any one from

• the reaction is too violent accept ‘it explodes’ or ‘acid goes everywhere’

• potassium is too reactive 1 (L5)

(c) (i) platinum 1 (L6)

(ii) answers must refer to the reactivity of both metals

any one from

• zinc displaces platinum from solution

• zinc is higher than platinum in the reactivity series accept ‘zinc is more reactive than platinum’

• platinum is lower than zinc in the reactivity series accept ‘platinum is less reactive than zinc’

1 (L6)

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(iii) any one from

• zinc is less reactive than potassium

• potassium is more reactive than zinc accept ‘zinc does not displace potassium from potassium chloride or the solution’

1 (L6) [7]

##

(a)

award one mark for each correct row 3 (L7)

copper iron magnesium zinc

calcium nitrate X X X X

copper nitrate

iron nitrate X

(b)

if all three answers are correct, award two marks if one or two answers are correct, award one mark if more than one line is drawn from a pair of reactants, award no credit for that pair

2 (L7) [5]

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M13. (a)

1

magnesium Mg answers must be in the correct order

zinc or Zn all four are required for the mark

iron Fe

copper Cu

(b) one mark is for the left hand box; the other mark is for the two right hand boxes

2

* dark grey

* brown

accept ‘copper coloured’ or ‘black’ for brown

colourless accept ‘almost colourless’

(c) Mg + CuSO4 or Mg and CuSO

4

Accept ‘the right hand’ or ‘the fourth one’ 1

[4]

M14. (a) down 1 (L3)

(b) Ellie and Maggy names may be in either order both names are required for the mark do not accept ‘540 and 540’ this rules out the same person being used twice

1 (L3)

(c) A B

award the mark if only one of these correct responses is given provided an incorrect response is not written in the other box

1 (L3)

up down

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(d) any one from

• Rosie

• Jack

• Rosie or Jack do not accept ‘490’ do not accept ‘510’ do not accept ‘490 or 510’ do not accept ‘Rosie and Jack’

1 (L3) [4]

M15. (a) (i) ice skate

accept ‘skate’ 1 (L3)

(ii) Tom’s weight on the footwear if more than one box is ticked, award no mark

1 (L3)

(b) any one from

• they do not sink in

• they have a big surface accept ‘they are wide’ or ‘they are big’ accept ‘they spread out your weight’ do not accept ‘you won’t get your feet stuck in the snow’ accept ‘they reduce the pressure’ do not accept ‘they spread out your pressure’

1 (L3)

(c) friction 1 (L4)

[4]

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M16. (a) any one from

• the force of the muscle would be less or lost

• the (fore)arm or bone would not move

accept ‘you could not bend or straighten your arm’

• the biceps or muscle could not pull on the bone

• the biceps or muscle would have no effect

accept ‘the biceps or muscle would not work properly’ ‘the arm would not work properly’ is insufficient properly’

• the biceps or muscle would have less effect 1 (L6)

(b) any one from

• when one contracts the other relaxes

do not accept ‘when one contracts the other expands

• when the biceps contracts the forearm is raised and when the triceps contracts the forearm is lowered

accept ‘one muscle moves the joint or bone or arm one way and the other muscle moves it the other way’, ‘they work together’ or ‘they do opposite things’ is insufficient

1 (L6)

(c) (i) C 1 (L5)

(ii) B and C 1 (L5)

D and A if more than two boxes are ticked, deduct one mark for each incorrect tick minimum mark zero

1 (L5) [5]

M17. (a) 150 1

(b) there is nothing to balance the force of the string accept ‘it is pushed by the string’ accept ‘there is a forward force acting on it’ accept ‘potential energy is converted to kinetic energy’ or ‘energy from the bow is transferred to the arrow’

1

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(c) any one from

• because they are not in opposite directions accept ‘because they are in different directions’ or ‘because they are at an angle to each other’ or ‘because they are not both horizontal’ do not accept ‘because they are at an angle’

• because they do not act along the same line accept ‘gravity pulls down and friction pushes across’

1

(d) any one from

• because the force is concentrated in a much smaller area accept ‘because the area in contact is smaller’ or ‘because there is a smaller area’

• because pressure is force divided by area 1

[4]

M18. (a) (i) • 240

accept ‘0.8 × 300’ 1 (L7)

• Nm accept ‘24 000 Ncm’ for two marks do not accept ‘mN’ do not accept ‘n’ for ‘N’

1 (L7)

(ii) any one from

• 150

consequential marking applies

• half the force needed at 0.8 m accept the numerical answer to (a) (i) ÷ 1.6 ‘half’ is insufficient

1 (L7)

accept ‘ ’ or ‘ ’

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(b) • 600

1 (L7)

• N/m2 or Pa

accept ‘0.06 N/cm2’ for two marks

1 (L7) [5]

M19. (a) the first mark is for the value and the second mark is for the appropriate unit

• 1000 1 (L7)

• N cm accept ‘cm N’ accept ‘10 N m’ for both marks

1 (L7)

(b) the answer must either be the same value as the answer to (a) or it must show that the moment is force F × 5 cm

(i) 1000 or the same or 5 F

consequential marking applies accept the value given in part (a) the unit is not required for the mark

1 (L7)

(ii) 200 consequential marking applies accept the answer to part (a) ÷ 5 cm or the answer to part (b) (i) ÷ 5cm

1 (L7)

(c) (i) move it to the right or towards the pivot 1 (L7)

(ii) 50 1 (L7)

N/cm2

accept ‘500 000 N/m2

or ‘500 kPa’ for both marks 1 (L7)

[7]

accept ‘ ’

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year 9 module 3 practice paper - brockington college · year 9 module 3 practice paper brockington...

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